Update to 1.49

.github/workflows/main.yml

@@ -12,8 +12,8 @@ jobs:
     - name: Install Rust
       run: |
         rustup set profile minimal
-        rustup toolchain install 1.48 -c rust-docs
-        rustup default 1.48
+        rustup toolchain install 1.49 -c rust-docs
+        rustup default 1.49
     - name: Install mdbook
       run: |
         mkdir bin

listings/ch17-oop/no-listing-01-trait-object-of-clone/output.txt

@@ -4,9 +4,10 @@ error[E0038]: the trait `Clone` cannot be made into an object
  --> src/lib.rs:2:21
   |
 2 |     pub components: Vec<Box<dyn Clone>>,
-  |                     ^^^^^^^^^^^^^^^^^^^ the trait `Clone` cannot be made into an object
+  |                     ^^^^^^^^^^^^^^^^^^^ `Clone` cannot be made into an object
   |
   = note: the trait cannot be made into an object because it requires `Self: Sized`
+  = note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
 
 error: aborting due to previous error
 

rust-toolchain

@@ -1 +1 @@
-1.48
+1.49

src/title-page.md

@@ -2,7 +2,7 @@
 
 *by Steve Klabnik and Carol Nichols, with contributions from the Rust Community*
 
-This version of the text assumes you’re using Rust 1.48 or later with
+This version of the text assumes you’re using Rust 1.49 or later with
 `edition="2018"` in *Cargo.toml* of all projects to use Rust 2018 Edition
 idioms. See the [“Installation” section of Chapter 1][install]<!-- ignore -->
 to install or update Rust, and see the new [Appendix E][editions]<!-- ignore